Sugary Drinks Increase Liver Cirrhosis Risk by 3.77 Times

Adults with diabetes and fatty liver who consume more than one sugary drink per week face a 3.77 times higher risk of liver fibrosis or cirrhosis, according to a 2025 Italian study cited by Dr. Wang Siheng. This increased risk persists regardless of the patient’s age, gender, or body weight.

The Taiwan Liver Promotion Association reports that nearly 7 million people currently suffer from fatty liver disease. Dr. Wang Siheng, a specialist in rehabilitative medicine, notes that many patients are surprised by a fatty liver diagnosis because they do not consume alcohol.

Did You Know? The Taiwan Liver Promotion Association has recorded nearly 7 million cases of fatty liver disease in the current population.

Why do sugary drinks cause liver fibrosis?

The damage is driven by fructose, a sugar common in sweetened beverages. Unlike glucose, which cells throughout the body can use for immediate energy, fructose is processed primarily in the liver, according to Dr. Wang.

When the liver processes excessive amounts of fructose, it converts the surplus into fat. Over time, this accumulation can trigger liver inflammation, which may lead to the development of fibrosis or cirrhosis.

Expert Insight: Samantha Carter notes that the biological pathway of fructose creates a specific burden on the liver that differs from glucose. Because the liver is the primary site for fructose metabolism, high consumption essentially turns the organ into a fat-production center, mirroring the damage caused by alcohol.

Who is most at risk from sugar-sweetened beverages?

The 2025 Italian study focused on 273 adults already diagnosed with both diabetes and fatty liver. For this high-risk group, drinking just one sugary beverage per week was enough to significantly increase the likelihood of liver scarring.

Complications of liver disease Dr Wang

Dr. Wang warns that these findings are particularly relevant in regions with a strong “bubble tea” or sweetened drink culture, such as Thailand and Taiwan. He states that not drinking alcohol does not guarantee a healthy liver, as fructose can cause similar levels of severity in liver damage.

How can people reduce their liver risk?

Dr. Wang recommends that individuals with abnormal blood sugar levels or existing fatty liver should avoid sugar-sweetened drinks entirely. For those who cannot avoid these beverages, he suggests ordering “zero percent sugar” versions to reduce the metabolic burden on the liver.

If current consumption patterns in high-risk populations continue, the prevalence of non-alcoholic liver fibrosis could potentially rise. Patients may see a higher frequency of liver inflammation if they do not adjust their sugar intake.

Frequently Asked Questions

Does avoiding alcohol prevent fatty liver disease?
No. According to Dr. Wang, fructose found in sugary drinks can damage the liver as severely as alcohol does, although the metabolic processes differ.

What is the difference between how the body handles glucose and fructose?
Glucose can be used for energy by cells across the entire body. Fructose, however, must be processed primarily by the liver.

How much sugar-sweetened drink consumption increases the risk of fibrosis?
In adults with diabetes and fatty liver, consuming more than one sugary drink per week is linked to a 3.77 times higher risk of liver fibrosis compared to those who rarely drink them.

Do you check the sugar content of your favorite drinks?